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Finding the Fourth Proportional to 6,263.52, 9,383.68 and 3,139.88

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Solution

The fourth proportional to 6,263.52, 9,383.68 and 3,139.88 is: 4,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,263.52 : 9,383.68 = 3,139.88 : x
  2. Step 2: Convert to fraction form
    6,263.52/9,383.68 = 3,139.88/x
  3. Step 3: Cross multiply
    6,263.52x = 9,383.68 × 3,139.88
  4. Step 4: Simplify right side
    6,263.52x = 29,463,629.16
  5. Step 5: Solve for x
    x = 29,463,629.16/6,263.52
  6. Step 6: Final answer
    x = 4,704.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.